Vulnerability Description
SNOMED International Snowstorm contains a reflected XSS vulnerability within the "Web Route" redirection functionality. An attacker can inject arbitrary JavaScript which will execute upon a target user navigating to a crafted, malicious link. Fixed in 10.12.2 and 10.9.3.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/IHTSDO/snowstorm/commit/575b555695811110dafe2fcea7dd2fd7e4bce
- https://github.com/IHTSDO/snowstorm/commit/b8061add427c930b3030549e77aa23ec5957c
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/
- https://www.cve.org/CVERecord?id=CVE-2026-66300
FAQ
What is CVE-2026-66300?
CVE-2026-66300 is a vulnerability with a CVSS score of 5.0 (MEDIUM). SNOMED International Snowstorm contains a reflected XSS vulnerability within the "Web Route" redirection functionality. An attacker can inject arbitrary JavaScript which will execute upon a target use...
How severe is CVE-2026-66300?
CVE-2026-66300 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-66300?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.